#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
	//int a[1][2] = { {1},{3} };
	//int num[];
//#define  N  100
//	int num[N];
	/*int s[12] = { 1,2,3,4,4,3,2,1,1,1,2,3 }, c[5] = { 0 }, i;
	for (i = 0; i < 12; i++) c[s[i]]++;
	for (i = 1; i < 5; i++) printf("%d ", c[i]);
	printf("\n");*/
	/*char s[10];
	s = "abcd";
	printf("%s\n", s);*/
	//char  str[][10] = { "China","Beijing" }, * p = str;
	//printf("%s\n", p + 10);
	//char  cf[3][5] = { "AAAA","BBB","CC" };
	//printf("\"%s\"\n", cf[1]);;
	//char str[12] = { 's','t','r','i','n','g' };
	//printf("%d\n", sizeof(str));
	//char* s4 = "Ctest\n";
	//printf("%s", s4);
	/*static char ch[] = "600";
	int a, s = 0;
	for (a = 0; ch[a] >= '0' && ch[a] <= '9'; a++)
		s = 10 * s + ch[a] - '0';
	printf("%d", s);*/
	/*char  s[] = "abcde";
	s += 2;
	printf("%d\n", s[0]);*/
	/*char p[20] = { 'a','b','c','d' }, q[] = "abc", r[] = "abcde";
	strcpy(p + strlen(q), r);
	printf("%s\n", p);
	strcat(p, q);
	printf("%d %d\n", sizeof(p), strlen(p));*/
	//char s1[] = "12345", s2[] = "1234";
	//printf("%d\n", strlen(strcpy(s1, s2)));
	////printf("%s", s1);
	char s;
	 s=getchar();
	 putchar(s);
	return 0;
}